Sash-holder



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TNESSES.' /NVENTOH Unire STATES PATENT Ormes.

IVILLIAM H. DALBEY, OF INDIANAPOLIS, ASSIGNOR OF ONE-HALF TO l EDIVARDD. KINGSBURY, OF IRVINGTON, INDIANA.

SASH-HOLDER.

SPECIFICATION forming part of Letters Patent No. 482,710, datedSeptember 13, 1.892.

Applicant ned Apai 29, 1892.

To a/ZZ whom t may concern:

` Be it known that LVVILLIAM H. DALBEY, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new and useful Improvements in Sash-Balances, ofwhich the following is a specification.

The object of my said invention is to provide an improved constructionof Vfrictional sash-balances which embody a roller set into a suitableseat in t-he frame and adapted to impinge against and hold the sash,whereby a balance of such a character is provided which may be readilyand easily adjusted lo balance andsupportsashesofdifferentweights injust the position to which it is adjusted and one which will also act tohold the sash with but slight, if any, return movement, all as will behereinafter more particularly described and claimed.

Referring to the accompanying drawings,

l which are made a part hereof, and on which similar letters ofreference indicate similar parts, Figure l is a View of a fragment of awindow-frame and window-sash, showing my improved sash-balance in theposition in the frame which it occupies when holding said sash,a portionof thesupporting plate or frame of said balance being broken out to showthe operating; parts more clearly, the position which the rolleroccupies while the sash is being raised being indicated by dotted lines;and Fig. 2 a sectional view looking in the direction indicated by thearrows from the dotted line 2 2 in Fig. l.

In said drawings the portions marked A represent the windowframe5 B, thesash; O, the supporting plate or frame of the balance; D, an adjustableframe attached thereto, and E a cam or friction roller. The frame Aandsash B are any ordinary window-frame and window-sash mounted therein.

The supporting plate or frame O is provided with countersunkperforations at its ends, by which it is secured by means of screws inthe inner edge of the window-frame, with its face flush therewith. Itscentral portion is formed open or cutout to permit the roller E toextend through the same against the sash, and rearwardlyextending sidewings c are provided throughout the middle portion Serial No. 431,148.(No model.)

of said plate, between which the roller E is contained.

The adjustable frame D consistsof an upper and lower horizontal barconnected by a web, which is inclined toward the sash from its upper toits lower end and furnishes a rest and guide for the roller E and servesas the rear wall of the seat in which said roller is mounted.Inwardly-extending lugs d are formed on the sides thereof, which engagein notches in the ends of said roller and hold the same in position, aswill be presently described. Ears d are formed on the outside corners ofsaid frame D, inwhich screw-bolts D are mounted, the perforations insaid ears being such as to permit said bolts to slide freely therein.Each is provided with a nut d2 just inside and resting against 011e earon each side of said frame, a coiled spring D2 being interposed betweensaid nut and the other ear around said screw-bolt. Said frame D may beformed in two duplicate parts, as shown, for convenience in casting, andsaid two parts being secured together bya boltcl.

The roller E is formed somewhat oblong or cam-shaped in cross-section,as shown in Fig. 1,(said ligurebeingm adethe full size of anordinary-sized working device,)and is mounted in the seat provided betweenthe rearwardlyprojecting wings c of the plate C, resting against theinclined rear wall or web of the frame D. In the ends and at the rearside of said roller E fan-shaped notches or recesses e are formed,'intowhich the lugs d of the frame D extend.

The operation of `my said invention is as follows: The sash-balance isset into and secured in position in the window-frame, as shown anddescribed. The roller E is placed in position with its forward faceprojecting through the central opening in the plate C. The screw-bolts Dare then adjusted to se cure just thattension of the springs D2whichwill hold the frame D, and through it the roller E, forward with theforce required to balance the weight of the sash, which may bedetermined by experiment or test. The sash being then placed in positionwill, as will be readily understood, be held at any position desiredbythe roller E. Then it is desired to lift said sash, said roller Erolls IOO back up the inclined rear Wall of its recess, which, togetherwith its oblong shape, acts to withdraw said roller within the recessand immediately relieve the sash of the force which held it and permitits free movement. Immediately upon removing the lifting force from saidsash said roller by its own gravity rolls down said incline,which,together with its oblong or cam shape, throws it immediately againstsaid sash and holds it against downward movement after being released.The recesses e in the ends of said roller are of sufficient width topermit it to roll to the extent required for the operation, while thelugs CZ therein prevent it from rolling back when the weight of the sashis thrown against it, as might be the case if no engagementwere providedbetween said inclined wall and said roller. By reason of the springs D2,aswill be readily understood, the same balance may be adjusted to alightor heavy sash, so that. they will be held with equal security, and butthe same amount of force required to pull said sash against theirresistance.

Having thus fully described my said invention,what I claim as new, anddesire to secure by Letters Patent, is-

1. A sash-balance consisting of a supporting plate or frame, anadjustable frame connected therewith, and a friction-roller mount` ed onan inclined way in said adjustable frame, to which it is connected bymeans whereby its rotaryv motion is positively limited, substantially asset forth.

2. In a sash-balance, the combination of 3 the main supporting plate orframe, a frame mounted to slide on guide-pins or parts connectedtherewith, springs interposed between a bearing -point connected withsaid main plate and a bearing-point on said adjustable 4 frame, meansfor adjusting the tension of said springs,'and a frictional bearingconnected with said adjustable frame and extending through the openingin said main frame to bear against the sash, substantially 4 4. In asash-balance, the combination, with 5` the supporting plate and frame,of a roller mounted in a. recess therein, said rollerbeing formed oblongor cam-shaped and connected loosely to the frame, whereby its motion islimited and it is held directly against the sash 6| when in use,substantially as set forth.

In witness whereof I have hereunto set my hand and seal, atIndianapolis, Indiana, this 25th day of April, A. D. 1892'.

WILLIAM H. DALBEY. [1.. s]

Witnesses: v

E. W. BRADFORD, J. A. WALSH.

